To the nearest tent what is the area of circle whose diameter is 21 inches

1 answer:

8 0

Answer:

It depends

Step-by-step explanation:

Area of a circle is given by

A = pi *r^2

We can find the radius by taking 1/2 of the diameter

r= 1/2(21)

r = 10.5

A = pi * (10.5)^2

A = 110.25 pi

Approximating pi with 3.14

A = 110.25 * 3.14

A =346.185 in^2

To the nearest tenth

A = 346.2 in^2

If we use the pi button on the calculator

A = 346.3605901

Rounding to the nearest tenth

A = 346.4 in^2

You need to determine whether you approximate pi by 3.14 or use the pi button on your calculator

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Drupady [299]

Answer:

x = 12

Step-by-step explanation:

Write in a different way: 2(2x + 8) = 64
Apply the distributed property, so it now looks like this: 4x + 16 = 64
Subtract 16 from each side, so it now looks like this: 4x = 48
Divide each side by 4 to cancel out the 4 next to x. It should now look like this: x = 12

I hope this helps!

4 0

3 years ago

raketka [301]

Factorial is the correct answer because in combinations the order does not matter

8 0

4 years ago

jeka94

Answer: